/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.fineract.infrastructure.sqlbuilder;

import org.apache.commons.lang3.StringUtils;

final class SqlBuilderUtil {

    private SqlBuilderUtil() {}

    static Object transform(String argument) {
        if (!StringUtils.isBlank(argument)) {
            if ("NULL".equals(argument)) {
                return null;
            } else if ("EMPTY".equals(argument)) {
                return "";
            } else if (isInt(argument)) {
                return Integer.parseInt(argument);
            } else if (isDouble(argument)) {
                return Double.parseDouble(argument);
            } else {
                return argument;
            }
        }

        return null;
    }

    static boolean isInt(String str) {
        return str != null && str.matches("\\d+");
    }

    static boolean isDouble(String str) {
        return str != null && str.matches("\\d+\\.\\d+");
    }
}
